GSTDTAP  > 气候变化
DOI10.1002/2017GL072759
CO2-vegetation feedbacks and other climate changes implicated in reducing base flow
Trancoso, Ralph1,2; Larsen, Joshua R.1,3; McVicar, Tim R.4,5; Phinn, Stuart R.1; McAlpine, Clive A.1
2017-03-16
发表期刊GEOPHYSICAL RESEARCH LETTERS
ISSN0094-8276
EISSN1944-8007
出版年2017
卷号44期号:5
文章类型Article
语种英语
国家Australia; Switzerland
英文摘要

Changes in the hydrological cycle have a significant impact in water limited environments. Globally, some of these regions are experiencing declining precipitation yet are simultaneously becoming greener, partly due to vegetation feedbacks associated with increasing atmospheric CO2 concentrations. Reduced precipitation together with increasing rates of actual evapotranspiration diminishes streamflow, especially base flow, a critical freshwater dry-season resource. Here we assess recent changes in base flow in Australia from 1981-2013 and 1950-2013 and separate the contribution of precipitation, potential evapotranspiration, and other factors on base flow trends. Our findings reveal that these other factors influencing the base flow trends are best explained by an increase in photosynthetic activity. These results provide the first robust observational evidence that increasing atmospheric CO2 and its associated vegetation feedbacks are reducing base flow in addition to other climatic impacts. These findings have broad implications for water resource management, especially in the world's water limited regions.


领域气候变化
收录类别SCI-E
WOS记录号WOS:000398183700030
WOS关键词VEGETATION INFORMATION ; CARBON-DIOXIDE ; CO2 ; TRENDS ; STREAMFLOW ; RESPONSES ; IMPACT ; COVER
WOS类目Geosciences, Multidisciplinary
WOS研究方向Geology
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/29027
专题气候变化
作者单位1.Univ Queensland, Sch Earth & Environm Sci, Brisbane, Qld, Australia;
2.Dept Environm & Heritage Protect, Brisbane, Qld, Australia;
3.Univ Lausanne, Inst Earth Surface Dynam, Lausanne, Switzerland;
4.Christian Lab, CSIRO Land & Water, Black Mt, Canberra, ACT, Australia;
5.Australian Res Council Ctr Excellence Climate Sys, Sydney, NSW, Australia
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GB/T 7714
Trancoso, Ralph,Larsen, Joshua R.,McVicar, Tim R.,et al. CO2-vegetation feedbacks and other climate changes implicated in reducing base flow[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(5).
APA Trancoso, Ralph,Larsen, Joshua R.,McVicar, Tim R.,Phinn, Stuart R.,&McAlpine, Clive A..(2017).CO2-vegetation feedbacks and other climate changes implicated in reducing base flow.GEOPHYSICAL RESEARCH LETTERS,44(5).
MLA Trancoso, Ralph,et al."CO2-vegetation feedbacks and other climate changes implicated in reducing base flow".GEOPHYSICAL RESEARCH LETTERS 44.5(2017).
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